Late at night and on weekends, the MTA stores a significant number of subway trains underground. Some of these trains are parked in dedicated underground subway yards, while others are stored on express tracks and tracks that were originally built as part of subway routes that were never completed. As a follow-up to our previous article on where New York City’s wheels and hooves go at night, here are seven below-ground overnight homes for the city’s subway cars.

7. 137th Street Yard

When you take the 1 train between 137th street and 145th street, the train passes right down the middle of one of the only subway yards specifically built underground with train storage in mind. The 137th Street Yard consists of 5 storage tracks located on either side of active subway tracks. Ten #1 trains can be parked on these tracks, and the tracks are usually full at night.